26 Questions
True or false: Metabolism is the sum of all the chemical reactions taking place in a cell or organism?
True
True or false: Glucose is respired by cells to produce ATP to supply their immediate energy needs?
True
True or false: Enzymes are made of long chains of amino acids joined together by peptide bonds?
True
True or false: Enzymes are not affected by pH and temperature.
False
True or false: Enzyme activity increases with temperature, up to around 40°C.
True
True or false: Denatured enzymes can regain their shape and activity if the temperature drops back down below 40°C.
False
True or false: Bioprocessing is the use of non-living organisms to produce useful substances.
False
True or false: Photosynthesis is the conversion of light energy to chemical energy using chlorophyll, C2O and H2O.
False
True or false: Stomata are mostly found on the upper epidermis of the leaf.
False
True or false: The optimum temperature for most plant enzymes is 25oC.
True
True or false: Water is freely available and is absorbed by plant root hairs.
True
True or false: Oxygen gas is produced during the light-independent stage of photosynthesis?
True
True or false: Anaerobic respiration produces large amounts of energy?
False
True or false: Anabolic reactions obtain energy from ATP and release energy in the process?
True
True or false: Catabolic reactions convert ADP and P into ATP?
True
True or false: ATP stores energy released in reactions such as photosynthesis or respiration in the form of ADP and inorganic phosphate.
False
True or false: Glycolysis occurs in the mitochondrion and requires oxygen.
False
True or false: The Krebs cycle produces 4 ATP for each molecule of glucose broken down.
False
True or false: Anaerobic respiration produces 38 ATP per glucose, compared to 2 ATP in aerobic respiration.
False
True or false: Enzyme immobilization allows for the reuse of enzymes and makes it easier to recover them.
True
True or false: The enzyme zymase is used to convert glucose to alcohol.
True
True or false: The rate of the catalase reaction increases with higher pH levels.
False
True or false: Boiling potato discs for five minutes will increase the rate of enzyme activity.
False
True or false: Fermentation is complete when the solution becomes clear as the yeast settles to the bottom of the flask?
True
True or false: Diffusion is an active process that requires energy?
False
True or false: Osmosis is the movement of water molecules from a region of lower water concentration to a region of higher water concentration?
False
Test your knowledge on ATP and its functions in cellular energy transfer. Learn how ATP stores and transports energy within cells, and understand its role in the energy cycle of respiration.
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